Aside from the smartphone app you can also set up the device via their website: Handyfeeling.com
Unlike the Launch, Handy caches the entire funscript to the chip and then plays it. Commands are sent from their server to control the playback on the device. You can’t manipulate stroke speed in ScriptPlayer because the script content is already fixed.
You can host scripts locally if you experiences long buffer time:
https://discuss.eroscripts.com/t/how-to-host-scripts-locally-for-your-handy/102991
To use Bluetooth on the Handy press and hold down the “-” button until the blue LED light flashes up. Bridge connection with Intiface.io like how you always did. This gives you a similar experience to the Launch, but may not yield the smoothest experience when running complex scripts. Works with VaMLaunch.